/**
 *    Copyright (C) 2025-present MongoDB, Inc.
 *
 *    This program is free software: you can redistribute it and/or modify
 *    it under the terms of the Server Side Public License, version 1,
 *    as published by MongoDB, Inc.
 *
 *    This program is distributed in the hope that it will be useful,
 *    but WITHOUT ANY WARRANTY; without even the implied warranty of
 *    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 *    Server Side Public License for more details.
 *
 *    You should have received a copy of the Server Side Public License
 *    along with this program. If not, see
 *    <http://www.mongodb.com/licensing/server-side-public-license>.
 *
 *    As a special exception, the copyright holders give permission to link the
 *    code of portions of this program with the OpenSSL library under certain
 *    conditions as described in each individual source file and distribute
 *    linked combinations including the program with the OpenSSL library. You
 *    must comply with the Server Side Public License in all respects for
 *    all of the code used other than as permitted herein. If you modify file(s)
 *    with this exception, you may extend this exception to your version of the
 *    file(s), but you are not obligated to do so. If you do not wish to do so,
 *    delete this exception statement from your version. If you delete this
 *    exception statement from all source files in the program, then also delete
 *    it in the license file.
 */

#pragma once

#include "mongo/db/operation_context.h"
#include "mongo/db/service_context.h"
#include "mongo/executor/task_executor.h"
#include "mongo/util/modules.h"

#include <memory>
#include <string>

namespace mongo {

/**
 * NOTE:
 * Local executor is a ThreadPoolTaskExecutor executor that prohibits remote execution.
 * The prohibition is achieved by a hook on the network interface that asserts, so if the client
 * code tries to schedule a remote task on this executor, it will fail.
 * This executor is used in cases where we normally have to choose between ReplSetNodeExecutor and
 * the Grid's one. In those cases usually we select based on the serverGlobalParam (the startup
 * flag). But the fac that we have a cluster role doesn't mean the grid is already initialized (we
 * might still wait for the shardIdentity to initialize). Since this executor is always initialized
 * we can use this instead of the selection mechanism.
 */

/**
 * Returns the local executor.
 */
MONGO_MOD_NEEDS_REPLACEMENT std::shared_ptr<executor::TaskExecutor> getLocalExecutor(
    ServiceContext* srvCtx);

/**
 * Returns the local executor.
 */
MONGO_MOD_NEEDS_REPLACEMENT std::shared_ptr<executor::TaskExecutor> getLocalExecutor(
    OperationContext* opCtx);

/**
 * Sets the local executor.
 */
MONGO_MOD_NEEDS_REPLACEMENT void setLocalExecutor(ServiceContext* srvCtx,
                                                  std::shared_ptr<executor::TaskExecutor> executor);

/**
 * Creates a local executor.
 */
MONGO_MOD_NEEDS_REPLACEMENT std::shared_ptr<executor::TaskExecutor> createLocalExecutor(
    ServiceContext* srvCtx, const std::string& name);

}  // namespace mongo
